51单片机时钟程序

#include#includesbit P32=P32;sbit P23=P23;sbit P22=P22;sbit P21=P21;sbit P20=P20;unsigned char x;unsigned char DisBuf8=0,0,0,0,0,0,0,0;unsigned char DisBuf18=0,0,0,0,0,0,0,0;code unsigned char Tab10=0x81,0xed,0x43,0x49,0x2d,0x19,0x11,0xcd,0x01,0x09;unsigned char timer0_count1=0,t1=0;/unsigned char timer0_count3=0,t3=0;unsigned char timer0_count2=0;unsigned char Second=0,Minute=0;unsigned int Year=17;unsigned int Month=01;unsigned int Day=02;unsigned int Hour=14;unsigned char a1=0;unsigned int mond=1;/显示模式unsigned int a=9;/倒计时初试时间unsigned int b=60;void mDelay(unsigned int delay) unsigned char i; for(;delay0;delay-) for(i=0;i1000) P32=!P32; timer0_count2=0; if(mond=4) b-; if(b59) Second=0; Minute+; if(Minute59) Minute=0; Hour+; if(Hour24) Hour=0; Day+; if(Day30) Day=0; Month+; if(Month12) Month=0; Year+; DisBuf0=Minute/10; DisBuf1=Minute%10; DisBuf2=Second/10; DisBuf3=Second%10; DisBuf4=Day/10; DisBuf5=Day%10; DisBuf6=Hour/10; DisBuf7=Hour%10; DisBuf10=Year/10; DisBuf11=Year%10; DisBuf12=Month/10; DisBuf13=Month%10; DisBuf14=a/10; DisBuf15=a%10; DisBuf16=b/10; DisBuf17=b%10; if(mond=1)/分秒显示 timer0_count1+;if(timer0_count15) timer0_count1=0; t1+; if(t13) t1=0; switch(t1) case0:P0=TabDisBuf0; P2=P2|0x80;P2=P2&0x8f; break; case1:P0=TabDisBuf1; P2=P2|0x40;P2=P2&0x4f; break; case2:P0=TabDisBuf2; P2=P2|0x20;P2=P2&0x2f; break; case3:P0=TabDisBuf3; P2=P2|0x10;P2=P2&0x1f; break; default: break; else if(mond=2)/天时显示 timer0_count1+;if(timer0_count15) timer0_count1=0; t1+; if(t13) t1=0; switch(t1) case0: P0=TabDisBuf4; P2=P2|0x80;P2=P2&0x8f; break; case1:P0=TabDisBuf5; P2=P2|0x40;P2=P2&0x4f; break; case2:P0=TabDisBuf6; P2=P2|0x20;P2=P2&0x2f; break; case3:P0=TabDisBuf7; P2=P2|0x10;P2=P2&0x1f; break; default: break; else if(mond=3)/年月显示 timer0_count1+;if(timer0_count15) timer0_count1=0; t1+; if(t13) t1=0; switch(t1) case0:P0=TabDisBuf10; P2=P2|0x80;P2=P2&0x8f; break; case1:P0=TabDisBuf11; P2=P2|0x40;P2=P2&0x4f; break; case2:P0=TabDisBuf12; P2=P2|0x20;P2=P2&0x2f; break; case3:P0=TabDisBuf13; P2=P2|0x10;P2=P2&0x1f; break; default: break; else if(mond=4)/倒计时 timer0_count1+;if(timer0_count15) timer0_count1=0; t1+; if(t13) t1=0; switch(t1) case0:P0=TabDisBuf14; P2=P2|0x80;P2=P2&0x8f; break; case1:P0=TabDisBuf15; P2=P2|0x40;P2=P2&0x4f; break; case2:P0=TabDisBuf16; P2=P2|0x20;P2=P2&0x2f; break; case3:P0=TabDisBuf17; P2=P2|0x10;P2=P2&0x1f; break; default: break; void main() unsigned char Keynumber=0,Keytemp=0; TMOD=0x01; TH0=0xfc;TL0=0x66; TR0=1; IE=0x82; while(1) P1&=0x0f;if(P2&0x0f)!=0x0f)/有键按下 mDelay(5); if(!P23) P1&=0x7f;P1|=0x70; if(!P23)Keynumber=1; else P1&=0xbf;P1|=0xb0; if(!P23)Keynumber=2; else P1&=0xdf;P1|=0xd0; if(!P23)Keynumber=3; else P1&=0xef;P1|=0xe0; if(!P23)Keynumber=4; else Keynumber=20; else if(!P22) P1&=0x7f;P1|=0x70; if(!P22)Keynumber=5; else P1&=0xbf;P1|=0xb0; if(!P22)Keynumber=6; else P1&=0xdf;P1|=0xd0; if(!P22)Keynumber=7; else P1&=0xef;P1|=0xe0; if(!P22)Keynumber=8; else Keynumber=20; else if(!P21) P1&=0x7f;P1|=0x70; if(!P21)Keynumber=9; else P1&=0xbf;P1|=0xb0; if(!P21)Keynumber=10; else P1&=0xdf;P1|=0xd0; if(!P21)Keynumber=11; else P1&=0xef;P1|=0xe0; if(!P21)Keynumber=12; else Keynumber=20; else if(!P20) P1&=0x7f;P1|=0x70; if(!P20)Keynumber=13; else P1&=0xbf;P1|=0xb0; if(!P20)Keynumber=14; else P1&=0xdf;P1|=0xd0; if(!P20)Keynumber=1